High Speed Flow

High speed flow topics betrays the physics of compressible flow. The primary interests includes analyzing the flow fields and shockwave dynamics in high speed gas flow. Interaction of shockwaves with the boundary layers and effects of turbulence in supersonics flow are of great interests.

Viscous Flow

The study of boundary layer theory and its effects are exciting as well as difficult to model theoretically. The classic book, "BOUNDARY LAYER THEORY" by Hermann Schlichting exhibits the challenges. The transition from laminar to turbulent boundary layer is a vital phenomena which is yet to understand properly. Solving the mighty Navier-Stokes equation in boundary layer rigion is also a thrilling study.

Turbulence

In fluid dynamics, turbulence or turbulent flow is any pattern of fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to a laminar flow regime, which occurs when a fluid flows in parallel layers, with no disruption between those layers.

Applied Mathematics

To study natural science, proficiency in mathematics is a must. Fundamental and applied fluid mechanics requires strong skills in mathematical techniques like perturbation methods, method of characteristics etc. Analytical Modelling of fluid dynamical problems is an elegant way of solving albeit practical application often demands quicker but approximate solutions, it also needs primary applied mathematics.

Theoretical Model

Theoretical modelling is actually handling the problem analytically with the help of mathematical tools. This approach is found to be very superior for analyzing the flow field or actually knowing the physics. On the contrary, engineering applications often demands the relation among poerformance parameters or the necessary variables for complex geometry or systems. These type of problems are difficult to model rather experiments and simulations are effective choices. Again it is to be said that to know the real physics or to eshtablish a hypothesis regarding flow behave analytical modelling is very elegant

Experiments

To know the inner physics of fluid flow it is a very old and effective way to actually making the flow occur in a suitable experimental setup. A wind tunnel with measurement system, shock tubes can enable a researcher doing high quality research. Experiments are performed in wind tunnels in Physical Fluid Dynamics research group of Dept. of ME, BUET

Simulation

Simulation is used as a virtual experimental platform. With proper validation and reliable computational scheme it is used to handle fluid flow problems in compressible and incompressible flows with various turbulence models. RANS, LES, DES etc. are some simulation techniques incorporated in commercial packages used in PFD

Flow Field in a Supersonic Inlet Isolator

As an udergraduate student I performed my undergraduate thesis on "Flow field characteristics in a supersonic inler isolator". Mainly simulation was done using K-Omega SST turbulence model in Ansys Fluent 14.5. The target of the study was to develop a 2 dimensional bump geometry to reduce Shockwave Boundary Layer Interaction in ramp increasing the isolator performance.

Exploring Nature to ANSWER "WHY??

The vital motivation of research is to answer the question,"WHY?" I am not satisfied just doing or solving a problem rather I intend to know the inner nature of fluid mechanics. Perhaps some engineering application do not even require this but relating the fluid flow behave with their inner physics has always been a great interest of me.

Self-Satisfaction

The first and foremost purpose of my research activities is self-satisfaction. I beleive the target of studying a topic is enough to be studying only. Real life problems or direct applications may be addressed as well but it is necessary for an enthusiast to have a tendency to just know. Feeling F = ma is important for a Nowtonian Mechanics expert.

Welfare of Society and Self

As an academician one needs to continue the process of learning and teaching. Motivation of research works also includes being proficient in the area of expertise. This enables an individual to contribute to his country and himself. High quality research not only promotes knowledge and skills but also gets quick promotions.

M.Sc. in Mechanical Engineering

Department of Mechanical Engineering

Bangladesh University of Engineering and Technology (BUET)

B.Sc. in Mechanical Engineering

Department of Mechanical Engineering

Bangladesh University of Engineering and Technology (BUET)

Higher Secondary Certificate (H.S.C.)

Dhaka College, Dhaka

Secondary School Certificate (S.S.C.)

Government Laboratory High School, Dhaka

Lecturer

December 2017 - Present

Department of Mechanical Engineering

Bangladesh University of Engineering and Technology (BUET)

Joining one's own department as a teacher is a great oppurtunity to serve the nation as well as getting involved with the academic program of the best engineering university in the country. Being in touch with highly qualified and experienced teachers and experts increases one's knowledge, administrative experience and leadership. Every term going in front of the young undergrads is really exciting.

Industrial Trainee

January 2017

Bangladesh Atomic Energy Commisssion

In the final year of graduation I had the chance to attend one month training in Atomic Energy Research Eshtablishment (AERE), Savar, Dhaka, Bangladesh Atomic Energy Commission under the course ME 370: Industrial Training. It was a huge experience working in Center for Research Reactor (CRR) with atomic scientists and reactor engineers of the country.